diff --git a/webapp/controller/BlockChainController.class.php b/webapp/controller/BlockChainController.class.php
index d7c07410..6cc5962b 100644
--- a/webapp/controller/BlockChainController.class.php
+++ b/webapp/controller/BlockChainController.class.php
@@ -399,7 +399,7 @@ class BlockChainController extends BaseAuthedController {
 
         $rspObj = services\BlockChainService::gameItemMarketBuy(
             Transaction::BUY_GOODS_FROM_MARKET_ACTION_TYPE,
-            $goods['owner_address'],
+            $goods['seller'],
             $goods['price'],
             $goods['item_id'],
             $goods['item_num']